from tkinter import*
print("введите начальную координату x:")
x=int(input())
print("введите начальную координату y:")
y=int(input())
print("введите начальную координату n:")
n=int(input())
coords =[0,0,10,0,10,10,20,10,20,30,10,30,10,20,0,20]
if n==x and x>=0 and x<=500 and y>=0 and y<=500:
    pass
else:
    if n<0 and 0*n+x>=0 and 0*n+y>=0 and 20*n+x<=500 and 20*n+y<=500:
        pass
    else:
        if n<0 and 20*n+x>=0 and 20*n+y>=500 and 0*n+x<=500 and 0*n+y<=500:
            pass
        else:
            print("размер фигуры превышает максимальный размер поля")
            exit()
root=Tk()
root.title("ИТ марафон")
root.geometry("500x500")
canvas=Canvas(bg="white",width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0]  *n+x, coords[1]  *n+y,
                                  coords[2]  *n+x, coords[3]  *n+y,
                                  coords[4]  *n+x, coords[5]  *n+y,
                                  coords[6]  *n+x, coords[7]  *n+y,
                                  coords[8]  *n+x, coords[9]  *n+y,
                                  coords[10]  *n+x, coords[11]  *n+y,
                                  coords[12]  *n+x, coords[13]  *n+y,
                                  coords[14]  *n+x, coords[15]  *n+y,)        
root.mainloop()
